This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

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Monday, September 12, 2016

Suhr Riot

Gotten a few requests for this one. The Riot distortion from Suhr is built around 2, dual opamps (4580 in originals, but others can be used) with several clipping options for a great high gain experience. You can pretty much use whatever diodes you want, but it's laid out for 2 LEDs always clipping, with the option of adding either 3, 1N4148s in asymmetrical orientation or 4, 1N34s in series. You can also try replacing D4 with a 1N4148 (I've included pads for that on the PCB), or changing the color of the LEDs. Really, just experiment with what you have on hand and chose what sounds best to you.

Hello, I've found missing 2 holes on the solder side of the perf board for 4001.(polarity protection?)Adding these 2 holes, now I am populating my board.Thank you for all great layouts here, especially reflecting actual size of each compnent.

Thank you for the response. I just finish this build, sounds really great, some mods: 11.3 -> 2 x 5.6K, red leds 3mm, and in the mean time i got my 4580, i used TL072 and work perfect. i love the sound of this pedal.

The switch can be on/on, on/off/on, or on/on/on. On/off/on would be the option I would go with though. Refer to the General Layout Notes for switch numbering guide. You should be able to figure out the wiring from that.

Just finished building and noodling around with it. It sounds awesome! Really nice full sounding high gain madness. I found the 34a's not really working in this context so I changed them to 2n7000's. Those sound awesome in this pedal. Thanks again for another brilliant PCB. I really love the compact yet roomy layout of this one. Great work!!

You can use pretty much whatever diodes you want in this. In place of the 1N34As you could use 1N270, 1N60P, or any other germanium diode you can find. But it doesn't necessarily need to be germanium. You could use schottky diodes like the BAT41 or 43. Lots of options. Socket and experiment with what you can find.

Hey,I built this pedal, and im having some weird isue, outside the box without 3pdt sounds amazing, but when I wired the switch this add a lots of noise, hum and other noises... something that without the switch never happend. I used coated wire, and grounded input... plus this isnt my first build, i made already a bunch of high gain pedals without this trouble... tryed many different switches, dpdt to.. but always the same---

Having trouble scaling a PCB transfer image? Check out the Transfer Image Library page for pre-scaled PDFs of every PCB transfer image on the site. All you have to do is download the file and print. The files are organized by brand. Those brands that do not have two or more layouts on the site are grouped together in the "Misc." folder.